B2147 GMC Code - Outside Rearview Mirror Position Sensor Input Voltage High
Quick Answer
The B2147 GMC code indicates that the outside rearview mirror position sensor input voltage is reading higher than the specified range. Common causes include Faulty outside rearview mirror position sensor, Wiring or connector issues in the mirror sensor circuit, Corrosion or damage to the sensor or its components. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B2147 GMC indicates Outside Rearview Mirror Position Sensor Input Voltage High.
- Common causes
- Common causes include Faulty outside rearview mirror position sensor, Wiring or connector issues in the mirror sensor circuit, Corrosion or damage to the sensor or its components.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B2147 GMC Description
The B2147 GMC code indicates that the outside rearview mirror position sensor input voltage is reading higher than the specified range. This sensor is responsible for detecting the position of the exterior mirrors on the vehicle. When the voltage is too high, it can lead to incorrect mirror positioning or failure to adjust the mirrors properly. This issue can impact the driver's visibility and overall safety while driving.
Common Causes of B2147 GMC
- Faulty outside rearview mirror position sensor.
- Wiring or connector issues in the mirror sensor circuit.
- Corrosion or damage to the sensor or its components.
- Electrical issues in the mirror control module.
- Water or moisture intrusion affecting the sensor's performance.
Symptoms of B2147 GMC
- Erratic movement of the exterior mirrors.
- Inability to adjust the mirrors using the mirror control switch.
- Mirrors not returning to the correct position after being adjusted.
- Warning light on the dashboard related to the mirror system.
How to Fix B2147 GMC
- Begin by diagnosing the specific cause of the high voltage input using a diagnostic scanner.
- Inspect the wiring and connectors in the mirror sensor circuit for any damage or corrosion.
- Test the outside rearview mirror position sensor for proper functionality and replace if necessary.
- Check the mirror control module for any electrical issues and repair or replace as needed.
- Clear the diagnostic trouble codes and test the mirror adjustment system to ensure proper operation.
Cost to Fix B2147 GMC
The typical repair costs for addressing the B2147 GMC code can range from $150 to $400, including parts and labor. However, it's important to note that the actual cost can vary depending on the specific diagnosis time and labor rates at auto repair shops. Rates may be higher at dealerships or in metropolitan areas, while independent shops may offer lower prices. It's recommended to obtain quotes from local shops for a more accurate estimate.
Need more information about the B2147 GMC code?
Need more information on how to fix the B2147 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B2147 GMC code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B2147 GMC Code
1. What are the common symptoms of OBDII code B2147 GMC?
The common symptoms of OBDII code B2147 GMC include erratic movement of the outside rearview mirror, mirror position not adjusting properly, and the mirror not responding to controls.
2. What causes the OBDII code B2147 GMC to trigger?
The OBDII code B2147 GMC is triggered when the outside rearview mirror position sensor input voltage is detected to be high, indicating a potential issue with the sensor or its wiring.
3. How can I diagnose the OBDII code B2147 GMC?
Diagnosing the OBDII code B2147 GMC involves checking the wiring and connections of the outside rearview mirror position sensor, testing the sensor's voltage output, and inspecting for any signs of damage or corrosion.
4. Can a faulty outside rearview mirror position sensor be repaired?
In some cases, a faulty outside rearview mirror position sensor may be repairable by fixing wiring issues, cleaning connectors, or replacing the sensor itself if necessary.
5. Are there any quick fixes for the OBDII code B2147 GMC?
Quick fixes for the OBDII code B2147 GMC include checking and resetting the mirror position manually, ensuring proper power supply to the mirror, and clearing the code with an OBDII scanner.
6. Is it safe to drive with the OBDII code B2147 GMC active?
It is generally safe to drive with the OBDII code B2147 GMC active, but it is recommended to address the issue promptly to ensure proper functioning of the outside rearview mirror system.
7. How much does it typically cost to repair the OBDII code B2147 GMC?
The cost to repair the OBDII code B2147 GMC can vary depending on the root cause of the issue, but it may range from a simple wiring repair to a sensor replacement, with costs varying accordingly.
8. Can I reset the OBDII code B2147 GMC without fixing the underlying issue?
Resetting the OBDII code B2147 GMC without fixing the underlying issue may temporarily clear the code, but the problem will likely persist and trigger the code again until the root cause is addressed.
9. How long does it take to repair the OBDII code B2147 GMC?
The time it takes to repair the OBDII code B2147 GMC can vary based on the complexity of the issue, but simpler fixes like cleaning connectors can be done quickly, while sensor replacement may take longer.
10. Will the OBDII code B2147 GMC affect the vehicle's performance?
The OBDII code B2147 GMC is related to the outside rearview mirror system and should not directly affect the vehicle's performance, but addressing the issue promptly is still recommended for safety and convenience.
Discuss the causes and fixes for B2147 GMC OBDII Code
Code B2147 GMC comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.